Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Material Science
Class Information
Number: 419
Name: Powder metallurgy processes >
Description: This is the generic class for producing metals, alloys or metal containing compositions in a solid or compact state from powdered or particulate material with or without heating.










Class Number Class Name No. of Patents
419/61

Forming articles by uniting randomly associated metal particles

74
419/66

Consolidation of powders

388
419/67

Extrusion

149
419/68

Isostatic/hydrostatic pressing

147
419/69

Rolling

69
419/62

Powder pretreatment

64
419/63

Includes a chemical reaction

52
419/65

Includes adding a binder material

142
419/64

Includes coating of particles

72
419/1

Powder metallurgy processes with heating or sintering

67
419/46

Alloying occurs during sintering

160
419/38

Consolidation of powder prior to sintering

982
419/41

Extruding

143
419/42

Isostatic or hydrostatic

164
419/43

Rolling

89
419/39

Specific pressure or lack or pressure recited

231
419/40

Slip or slurry

91
419/25

Controlled cooling after sintering

124
419/48

Heat and pressure simultaneously to effect sintering

464
419/52

Heating by electrical means other than radiant energy

59
419/49

Hot isostatic pressing (hip)

515
419/50

Hot rolling

44
419/51

Multiaxial (not hip)

52
419/47

Liquid phase sintering

230
419/3

Making articles of indefinite length

96
419/4

Filaments or fibers

55
419/5

Making composite or hollow article

347
419/6

Powder next to powder

284
419/7

One or more components not compacted

82
419/8

Powder next to solid

536
419/9

Powder not compacted

224
419/2

Making porous product

433
419/10

Metal and nonmetal in final product

466
419/12

Boride containing

406
419/14

Carbide containing

346
419/15

Complex or multiple carbides

179
419/16

With another binary nonmetal

106
419/17

Single carbide

225
419/18

Tungsten carbide

214
419/13

Nitride containing

346
419/11

Nonmetal is elemental carbon

329
419/19

Oxide containing

447
419/22

Copper oxide

47
419/20

Rare earth oxide

97
419/21

Silver metal with metal oxide

82
419/53

Plural heating steps including sintering

191
419/55

Additional operation between heating steps

175
419/54

Different temperatures

362
419/26

Post sintering operation

207
419/27

Impregnation

215
419/29

Subsequent heat treatment (e.g., annealing, etc.)

431
419/28

Subsequent working

503
419/30

Powder pretreatment (prior to consolidation or sintering)

245
419/36

Addition of fugitive material

521
419/37

Additional material is solid

319
419/34

Chemical blending

94
419/35

Coating

252
419/33

Comminuting

279
419/31

Heat treatment of powder

242
419/32

Mechanical blending

286
419/23

Powder shape or size characteristics

605
419/24

Filaments or fibers

103
419/44

Pretreatment of consolidated powders

126
419/45

Sintering which includes a chemical reaction

251
419/56

Special medium during sintering

90
419/57

Special atmosphere

349
419/59

Hydrocarbon or derivative (e.g., ch4, etc.)

29
419/58

Hydrogen or hydrogen plus nitrogen (nitrogen per se in 57)

208
419/60

Vacuum

223
 
 
  Recently Added Patents
Coordinated multi-point transmission in a cellular network
Image output method and device, and image display
Asynchronous distributed de-duplication for replicated content addressable storage clusters
Flavonoid dimers and methods of making and using such
Inhibitor of casein kinase 1delta and casein kinase 1E
Hook
Aqueous composition with agents to inhibit water evaporation
  Randomly Featured Patents
Method for capturing images comprising a measurement of local motions
Method for forming line pattern array, photomask having the same and semiconductor device fabricated thereby
Modular lighting fixture with improved device for connecting the arms to the respective support
One-component, ambient curable waterborne coating compositions, related methods and coated substrates
Engine hood for riding-type mower
Microprocessor controlled battery reconditioner for portable radio transceivers
Magnetic disk
Digital fiber optic sensor system
Venetian blind cell layout for RF power transistor
Method for code division multiple access communication with increased capacity through self-noise reduction